Utilize granite waste to produce the method for microcrystalline glass decorative plate
Technical field
The present invention relates to the building materials technical field, a kind of especially method of utilizing discarded granite production decoration with building materials.
Background technology
(have another name called: microlite) dalle is a kind of novel high-grade building and ornament materials to devitrified glass, it is to use controlled crystallization technology and the new decorative material that obtains, physicochemical property has been concentrated the two-fold advantage of glass and pottery, every performance index all are better than lithotome and other artificial stone-like material, rely on its foofaraw effect and be close to perfect physicochemical property, become the renewal product of high-grade lithotome, be described as the 21 century New Building Materials.
From the document that retrieves, what abroad carry out suitability for industrialized production as material of construction at first the America and Europe is cinder microcrystalline glass and rock devitrified glass, USSR (Union of Soviet Socialist Republics) takes the lead in utilizing industrial slag as main raw material in middle 1960s, adopts the calendering working system to make slag nucleated glass plate; Czech by fusion casting basalt, has made the wear resistance flooring material the beginning of the seventies; The U.S. has produced building rock crystallizing glass decoration board the beginning of the seventies, mainly be to utilize slag, rock and other frit mixed melting, adopt the forming method of sheet glass to produce flat board earlier, be processed into crystallizing glass decoration board through thermal treatment (crystallization) and polishing again.Developed in succession again afterwards is the high-grade glass decorative sheet of principal crystalline phase with the wollastonite.In the Asia, Japan develops building nucleated glass at first, the devitrified glass granite of developing in 1967 is to be main raw material with the andesite, through fusing, be rolled into plate, thermal treatment and cold working and the black glass ceramic decorative sheet made, but there are some problems in its production technique and quality product.After extensive work, develop the molten sintering method and produce with the wollastonite and be the devitrified glass technology production technique of principal crystalline phase and continue to improve its production technique.Its production technology and quality product have all been represented the advanced international standard of crystallizing glass decoration board.Korea S is immediately following also having produced the high-grade glass decorative sheet after the Japan.In the foreign literature report, with wollastonite, kaolin is the existing sophisticated industrial production technology of raw material production devitrified glass and derived product thereof, simultaneously with flyash, various mine tailings, slag are that the report that main raw material prepares devitrified glass is constantly released, but do not see as yet up to now with the granite waste material and be main raw material and adopt all-electric melting to roll the pertinent literature report that whole crystallization method is produced microcrystalline glass decorative plate.
Domestic research to the decorative devitrified glass material is started late, just start the research and development upsurge up to late 1980s, the beginning of the nineties, mainly become leading with several families such as Tsing-Hua University, Shanghai silicate institute, Qinhuangdao Glass Industry Research Design Inst., brilliant ox group, Wuhan science and engineering, Xibei College of Light Industry and Bengbu Glass Industry and Design Institute in the whole nation.At the research and development initial stage, domestic each scientific research institutions adopt the whole crystallization of casting to produce microcrystal glass plate mostly, the production cost height, and the quality instability is difficult to suitability for industrialized production.The beginning of the nineties is domestic to begin to adopt the crystallizing glass decoration board production technology of molten sintering method research and development, main employing flyash, coal gangue, various mine tailing, smelted furnace cinder, silt particle, cullet etc. are main raw material, and raw material is being done all adopt the flame melting furnace in the melt processed process.
And in current building materials field, all want a large amount of all kinds of granite raw materials of use, and in recovery process, and the granite of exploiting out is in the processing and manufacturing process, all will produce a large amount of granite wastes and tailing etc., and this class waste has been made very big pollution to environment, how to fully utilize granite waste, and it is turned waste into wealth, be the problem that government and relevant enterprise are all very paid close attention to.
In sum, at present rarely seen in the production technology of microcrystalline glass decorative plate have with granite waste as main raw material, and failing turns waste into wealth, and fails to solve the pollution problem of granite waste to environment; Simultaneously prior art all adopts the flame melting furnace, shortcomings such as it has, and thermo-efficiency is low, control stiffness is not enough, complicated operation, noise are big, big for environment pollution, final product uneven components.
Summary of the invention
The present invention is intended to solve that thermo-efficiency is low in the existing microcrystalline glass decorative plate production process, control stiffness is not enough, complicated operation, noise is big, environmental pollution is big, final product uneven components, granite waste cause technical problems such as environmental pollution, can fully utilize granite waste to provide a kind of, production cost is low, the microcrystalline glass decorative plate production method of final product quality height, non-environmental-pollution.
The objective of the invention is to be achieved through the following technical solutions.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, comprising following steps:
A) granite waste being pulverized is 50-350 purpose fine powder;
B) above-mentioned granite fine powder and other component are mixed by following weight ratio:
Granite fine powder 75-90
Fluorite powder 2-5
Dicalcium powder 6-12
The pure 1-4 that seals
Water 1-4;
C) above-mentioned compound is sent into the all-electric melting kiln, be fused into glass metal under 1550-1650 ℃ temperature condition, enter clarification, homogenization material road through dog-hole, uptake, clarification, the homogenizing glass metal after good enters to be shaped expects the road;
D) above-mentioned glass metal is delivered to the rolling press calendaring molding by the molding mass road, forming temperature is 1050-1150 ℃, and the glass temperature that will be shaped is reduced to 850-950 ℃ afterwards, is delivered to annealing furnace through crossing the roller platform, carries out anneal;
E) with the glass after the above-mentioned annealing at the crystallization kiln internal heating to 950-1050 ℃, through 3-6 hour coring and crystallization, then the cooling, become the microlite hair plates;
F) above-mentioned microlite hair plates polished, after the polished finish, become microcrystalline glass decorative plate.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, employed granite waste among the wherein said step a, its component content per-cent is as follows:
SiO
2 73.20-76.50%
Fe
2O
3 0.95-1.20%
FeO 0.20-0.95%
Al
2O
3 11.00-12.10%
Na
2O 4.00-4.92%
K
2O 3.50-5.00%
CaO 0.20-0.95%
MgO 0.95-1.20%
TiO
2 0.03-0.09%
MnO 0.02-0.06%
P
2O
5 0.02-0.06%
The impurity surplus.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, employed granite waste among the wherein said step a, its component content per-cent is as follows:
SiO
2 75.08%
Fe
2O
3 1.02%
FeO 0.53%
Al
2O
3 11.99%
Na
2O 4.72%
K
2O 4.15%
CaO 0.76%
MgO 1.14%
TiO
2 0.07%
MnO 0.03%
P
2O
5 0.04%
The impurity surplus.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, among the wherein said step a granite waste being pulverized is 100-240 purpose fine powder.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention mixes granite fine powder and other component among the wherein said step b by following weight ratio:
Granite fine powder 85
Fluorite powder 3
Dicalcium powder 8
Purely seal 2
Water 2.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, among the wherein said step c, the frequency of compound being sent into the all-electric melting kiln is 10-20 minute/time.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention among the wherein said step c, is fused into glass metal with compound under 1600 ℃ temperature condition.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, in the wherein said steps d, the forming temperature of glass metal is 1100 ℃, the glass temperature that will be shaped is reduced to 900 ℃ afterwards.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention in the wherein said steps d, is conveyed into the cold junction line of cut with the glass after anneal by the annealing roller kiln, cuts into the sheet material of setting specification.
The method of utilizing granite waste to produce microcrystalline glass decorative plate of the present invention, among the wherein said step e, the glass after the annealing is at crystallization kiln internal heating to 1000 ℃, through 4 hours coring and crystallization.
The present invention utilizes granite waste to produce the beneficial effect of the method for microcrystalline glass decorative plate:
1. can fully utilize granite waste, reduce production costs, reduce environmental pollution;
2. comprehensive production cost is low;
3. final product quality height;
4. the furnace type structure of all-electric melting kiln is simple, and floor space is little, controls steadily and easy to operate, and has reduced dispersing and volatilization of some expensive oxide compound in the raw material, and it is pollution-free to reduce noise, improves working conditions, and the glass metal composition of founding out is even.
Embodiment
The present invention has adopted the all-electric melting furnace pressure to prolong whole crystallization method to produce microcrystalline glass decorative plate, and its implementing process, effect and effect are illustrated by following embodiment.
Embodiment 1
Utilize granite waste, adopt following technical process to make microcrystalline glass decorative plate:
A) granite waste being pulverized is 50-240 purpose fine powder;
The component content per-cent of granite waste is as follows:
SiO
2 73.2%
Fe
2O
3 1.2%
FeO 0.95%
Al
2O
3 12.1%
Na
2O 4.92%
K
2O 5%
CaO 0.95%
MgO 1.2%
TiO
2 0.09%
MnO 0.06%
P
2O
5 0.06%
The impurity surplus;
B) above-mentioned granite fine powder and other component are mixed by following weight ratio:
Granite fine powder 75
Fluorite powder 5
Dicalcium powder 12
Purely seal 4
Water 4;
C) above-mentioned compound was sent into the all-electric melting kiln by 10 minutes/time, be fused into glass metal under 1550 ℃ temperature condition, enter clarification, homogenization material road through dog-hole, uptake, clarification, the homogenizing glass metal after good enters to be shaped expects the road;
D) above-mentioned glass metal is delivered to the rolling press calendaring molding by the molding mass road, forming temperature is 1050 ℃, the glass temperature that will be shaped is reduced to 850 ℃ afterwards, be delivered to annealing furnace through crossing the roller platform, carry out anneal, glass after anneal is conveyed into the cold junction line of cut by the annealing roller kiln, cuts into the sheet material of setting specification;
E) with the glass after the above-mentioned annealing at crystallization kiln internal heating to 950 ℃, through 6 hours coring and crystallization, cooling becomes the microlite hair plates then;
F) above-mentioned microlite hair plates polished, after the polished finish, become microcrystalline glass decorative plate.
Embodiment 2
Utilize granite waste, adopt following technical process to make microcrystalline glass decorative plate:
A) granite waste being pulverized is 100-350 purpose fine powder;
The component content per-cent of granite waste is as follows:
SiO
2 76.5%
Fe
2O
3 0.95%
FeO 0.2%
Al
2O
3 11%
Na
2O 4%
K
2O 3.5%
CaO 0.2%
MgO 0.95%
TiO
2 0.03%
MnO 0.02%
P
2O
5 0.02%
The impurity surplus;
B) above-mentioned granite fine powder and other component are mixed by following weight ratio:
Granite fine powder 90
Fluorite powder 2
Dicalcium powder 6
Purely seal 1
Water 1;
C) above-mentioned compound was sent into the all-electric melting kiln by 20 minutes/time, be fused into glass metal under 1650 ℃ temperature condition, enter clarification, homogenization material road through dog-hole, uptake, clarification, the homogenizing glass metal after good enters to be shaped expects the road;
D) above-mentioned glass metal is delivered to the rolling press calendaring molding by the molding mass road, forming temperature is 1150 ℃, the glass temperature that will be shaped is reduced to 950 ℃ afterwards, be delivered to annealing furnace through crossing the roller platform, carry out anneal, glass after anneal is conveyed into the cold junction line of cut by the annealing roller kiln, cuts into the sheet material of setting specification;
E) with the glass after the above-mentioned annealing at crystallization kiln internal heating to 1050 ℃, through 3 hours coring and crystallization, cooling becomes the microlite hair plates then;
F) above-mentioned microlite hair plates polished, after the polished finish, become microcrystalline glass decorative plate.
Embodiment 3
Utilize granite waste, adopt following technical process to make microcrystalline glass decorative plate:
A) granite waste being pulverized is 100-240 purpose fine powder;
The component content per-cent of granite waste is as follows:
SiO
2 75.08%
Fe
2O
3 1.02%
FeO 0.53%
Al
2O
3 11.99%
Na
2O 4.72%
K
2O 4.15%
CaO 0.76%
MgO 1.14%
TiO
2 0.07%
MnO 0.03%
P
2O
5 0.04%
The impurity surplus;
B) above-mentioned granite fine powder and other component are mixed by following weight ratio:
Granite fine powder 85
Fluorite powder 3
Dicalcium powder 8
Purely seal 2
Water 2;
C) above-mentioned compound was sent into the all-electric melting kiln by 15 minutes/time, be fused into glass metal under 1600 ℃ temperature condition, enter clarification, homogenization material road through dog-hole, uptake, clarification, the homogenizing glass metal after good enters to be shaped expects the road;
D) above-mentioned glass metal is delivered to the rolling press calendaring molding by the molding mass road, forming temperature is 1100 ℃, the glass temperature that will be shaped is reduced to 900 ℃ afterwards, be delivered to annealing furnace through crossing the roller platform, carry out anneal, glass after anneal is conveyed into the cold junction line of cut by the annealing roller kiln, cuts into the sheet material of setting specification;
E) with the glass after the above-mentioned annealing at crystallization kiln internal heating to 1000 ℃, through 4 hours coring and crystallization, cooling becomes the microlite hair plates then;
F) above-mentioned microlite hair plates polished, after the polished finish, become microcrystalline glass decorative plate.
Devitrified glass (microlite) dalle that adopts the present invention to produce, its product has low cost, the class height, the density height, hardness is strong, good toughness, wear resistance is good, high-flatness, acid and alkali-resistance, radiationless, anti-skidding, zero suction, zero pore, exempt from characteristics such as maintenance, detect through CSGC and to reach and surpass " JC/T 872-2000 architectural decoration devitrified glass standard ", every performance index all are better than natural marble, grouan and all kinds of artificial stone-like material, the important representative of new decorative material for building and the best renewal product of high-grade lithotome have been become, its decorative effect is considerably beyond granite, marble, finishing material such as ceramic tile, authentic representative the developing direction of microlite decorative building material and even new decorative material for building, in the long-range objectives to the year 2010, the microlite decorative building material is planned as the strategic development emphasis of country's comprehensive utilization action and the emphasis of environment protection treating, is called as " cross-centennial environmental harmony material " and " 21st century environmental protection decoration materials ".
The present invention adopts electricity as unique energy; whole process of production does not have the discharging of waste water,waste gas and industrial residue; under the prerequisite of protection environment, realized recycling economy and the Sustainable development process that resources conservation combines with cleaner production; advantage with environmental benefit, social benefit and economic benefit three aspects, be one have a extensive future, the high-tech environment-friendly type project of rare resource circulation utilization.
The present invention uses the all-electric melting kiln to replace traditional flame heating melting furnace owing to utilize glass metal directly as the electrical conductor of joule heating effect, so the thermo-efficiency of vitreous electricity fusing far above the flame melting furnace, thermo-efficiency can be up to 80%~85%.The furnace type structure of all-electric melting kiln is simple, floor space is little, control steady and easy to operate, and reduced dispersing and volatilization of some expensive oxide compound in the raw material, it is pollution-free to reduce noise, improves working conditions, and the glass metal composition of founding out is even, the quality product height, these all are that the flame kiln hardly matches.
From the above, the method for utilizing granite waste to produce microcrystalline glass decorative plate of the present invention can turn waste into wealth a large amount of wastes that the granite production process produces, and reaches the regeneration of resource, and curbs environmental pollution; Be main raw material with depleted granite simultaneously, replace expensive industrial raw material to produce microlite and decorate, replace heavy oil, weather equal energy source as unique energy, reduced production cost greatly with electricity.